[{"data":1,"prerenderedAt":58},["ShallowReactive",2],{"\u002Fglossary\u002Favif":3,"\u002Fglossary\u002Favif:related":41},{"id":4,"title":5,"author":6,"authorImage":7,"body":8,"category":26,"date":27,"description":28,"draft":29,"extension":30,"letter":31,"meta":32,"navigation":33,"path":34,"readTime":35,"related":36,"seo":37,"stem":39,"term":5,"__hash__":40},"glossary\u002Fglossary\u002Favif.md","AVIF","Fabian Krumbholz","\u002Fimages\u002Fauthors\u002Ffabian-krumbholz.webp",{"type":9,"value":10,"toc":22},"minimark",[11],[12,13,14,17,18,21],"p",{},[15,16,5],"strong",{}," (AV1 Image File Format) is a modern, next-generation image format that provides significantly better compression than older formats like JPEG and WebP. This results in much smaller file sizes with high visual quality, making it a highly recommended format for an effective ",[15,19,20],{},"Image Optimization"," strategy.",{"title":23,"searchDepth":24,"depth":24,"links":25},"",2,[],null,"September 30, 2025","AVIF (AV1 Image File Format) is a modern, next-generation image format that provides significantly better compression than older formats like JPEG and WebP.",false,"md","A",{},true,"\u002Fglossary\u002Favif","1 min read",[],{"title":38,"description":28},"AVIF: Definition | Web Performance Glossary","glossary\u002Favif","AqHnwu5W7wPXSGGFPTBSxoFBXuJKifwCjeKxIZFSvzM",[42,46,50,54],{"path":43,"title":44,"description":45,"letter":31},"\u002Fglossary\u002Fa-b-testing","A\u002FB Testing","A\u002FB testing is a method of comparing two versions of a webpage to see which one performs better. For example, an e-commerce store might show 50% of its visitors a green \"Buy Now\" button (Version A)…",{"path":47,"title":48,"description":49,"letter":31},"\u002Fglossary\u002Fabandonment-rate","Abandonment Rate","Abandonment Rate is a metric that measures the percentage of users who start a specific process (like a checkout funnel or a sign-up form) but leave before completing it.",{"path":51,"title":52,"description":53,"letter":31},"\u002Fglossary\u002Fabove-the-fold","Above the Fold","This is a term originally from newspaper design that now refers to the portion of a webpage that is visible to a user without having to scroll down. Content \"above the fold\" is the very first thing a user sees.",{"path":55,"title":56,"description":57,"letter":31},"\u002Fglossary\u002Facceleration-rate","Acceleration Rate","The acceleration rate is a key performance indicator specific to Speed Kit that measures the percentage of whitelisted page views that were successfully accelerated by the Service Worker.",1787756711609]